diff options
| author | Fabio Alessandrelli <fabio.alessandrelli@gmail.com> | 2022-07-18 14:48:00 +0200 |
|---|---|---|
| committer | Fabio Alessandrelli <fabio.alessandrelli@gmail.com> | 2022-07-18 14:58:08 +0200 |
| commit | 9403a68853784e542bbff51a84e6dc5c89241d2b (patch) | |
| tree | a0d2f80fc094f281648de9122138e8bebd51ab40 /thirdparty/mbedtls/library | |
| parent | 73a67f93092239fa35adda4675187549f9c1f903 (diff) | |
Bump mbedtls to version 2.18.1, update LICENSE.
Keep applying windows entropy patch.
Update thirdparty/README with correct version information.
Diffstat (limited to 'thirdparty/mbedtls/library')
29 files changed, 431 insertions, 104 deletions
diff --git a/thirdparty/mbedtls/library/aes.c b/thirdparty/mbedtls/library/aes.c index 31824e75cf..03d8b7ea61 100644 --- a/thirdparty/mbedtls/library/aes.c +++ b/thirdparty/mbedtls/library/aes.c @@ -1106,7 +1106,7 @@ typedef unsigned char mbedtls_be128[16]; * * This function multiplies a field element by x in the polynomial field * representation. It uses 64-bit word operations to gain speed but compensates - * for machine endianess and hence works correctly on both big and little + * for machine endianness and hence works correctly on both big and little * endian machines. */ static void mbedtls_gf128mul_x_ble( unsigned char r[16], @@ -1206,7 +1206,7 @@ int mbedtls_aes_crypt_xts( mbedtls_aes_xts_context *ctx, unsigned char *prev_output = output - 16; /* Copy ciphertext bytes from the previous block to our output for each - * byte of cyphertext we won't steal. At the same time, copy the + * byte of ciphertext we won't steal. At the same time, copy the * remainder of the input for this final round (since the loop bounds * are the same). */ for( i = 0; i < leftover; i++ ) diff --git a/thirdparty/mbedtls/library/asn1write.c b/thirdparty/mbedtls/library/asn1write.c index 3811ef27a3..afa26a6be9 100644 --- a/thirdparty/mbedtls/library/asn1write.c +++ b/thirdparty/mbedtls/library/asn1write.c @@ -133,6 +133,11 @@ int mbedtls_asn1_write_mpi( unsigned char **p, unsigned char *start, const mbedt // len = mbedtls_mpi_size( X ); + /* DER represents 0 with a sign bit (0=nonnegative) and 7 value bits, not + * as 0 digits. We need to end up with 020100, not with 0200. */ + if( len == 0 ) + len = 1; + if( *p < start || (size_t)( *p - start ) < len ) return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); @@ -472,7 +477,7 @@ mbedtls_asn1_named_data *mbedtls_asn1_store_named_data( cur->val.len = val_len; } - if( val != NULL ) + if( val != NULL && val_len != 0 ) memcpy( cur->val.p, val, val_len ); return( cur ); diff --git a/thirdparty/mbedtls/library/bignum.c b/thirdparty/mbedtls/library/bignum.c index 62e7f76727..32578e2c68 100644 --- a/thirdparty/mbedtls/library/bignum.c +++ b/thirdparty/mbedtls/library/bignum.c @@ -1829,7 +1829,7 @@ int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_ /* * handle trivial cases */ - if( b == 1 ) + if( b == 1 || A->n == 0 ) { *r = 0; return( 0 ); @@ -2317,7 +2317,7 @@ int mbedtls_mpi_gcd( mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B * TA-TB is even so the division by 2 has an integer result. * Invariant (I) is preserved since any odd divisor of both TA and TB * also divides |TA-TB|/2, and any odd divisor of both TA and |TA-TB|/2 - * also divides TB, and any odd divisior of both TB and |TA-TB|/2 also + * also divides TB, and any odd divisor of both TB and |TA-TB|/2 also * divides TA. */ if( mbedtls_mpi_cmp_mpi( &TA, &TB ) >= 0 ) diff --git a/thirdparty/mbedtls/library/cipher.c b/thirdparty/mbedtls/library/cipher.c index 4ec40d2cac..f3b4bd29ce 100644 --- a/thirdparty/mbedtls/library/cipher.c +++ b/thirdparty/mbedtls/library/cipher.c @@ -386,6 +386,12 @@ int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx, #if defined(MBEDTLS_CHACHA20_C) if ( ctx->cipher_info->type == MBEDTLS_CIPHER_CHACHA20 ) { + /* Even though the actual_iv_size is overwritten with a correct value + * of 12 from the cipher info, return an error to indicate that + * the input iv_len is wrong. */ + if( iv_len != 12 ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + if ( 0 != mbedtls_chacha20_starts( (mbedtls_chacha20_context*)ctx->cipher_ctx, iv, 0U ) ) /* Initial counter value */ @@ -393,6 +399,11 @@ int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx, return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); } } +#if defined(MBEDTLS_CHACHAPOLY_C) + if ( ctx->cipher_info->type == MBEDTLS_CIPHER_CHACHA20_POLY1305 && + iv_len != 12 ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); +#endif #endif if ( actual_iv_size != 0 ) diff --git a/thirdparty/mbedtls/library/constant_time.c b/thirdparty/mbedtls/library/constant_time.c index 18f1b20daa..e276d23ca0 100644 --- a/thirdparty/mbedtls/library/constant_time.c +++ b/thirdparty/mbedtls/library/constant_time.c @@ -489,6 +489,12 @@ int mbedtls_ct_hmac( mbedtls_md_context_t *ctx, MD_CHK( mbedtls_md_update( ctx, add_data, add_data_len ) ); MD_CHK( mbedtls_md_update( ctx, data, min_data_len ) ); + /* Fill the hash buffer in advance with something that is + * not a valid hash (barring an attack on the hash and + * deliberately-crafted input), in case the caller doesn't + * check the return status properly. */ + memset( output, '!', hash_size ); + /* For each possible length, compute the hash up to that point */ for( offset = min_data_len; offset <= max_data_len; offset++ ) { @@ -533,6 +539,13 @@ cleanup: * about whether the assignment was made or not. * (Leaking information about the respective sizes of X and Y is ok however.) */ +#if defined(_MSC_VER) && defined(_M_ARM64) && (_MSC_FULL_VER < 193131103) +/* + * MSVC miscompiles this function if it's inlined prior to Visual Studio 2022 version 17.1. See: + * https://developercommunity.visualstudio.com/t/c-compiler-miscompiles-part-of-mbedtls-library-on/1646989 + */ +__declspec(noinline) +#endif int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned char assign ) @@ -562,7 +575,7 @@ cleanup: /* * Conditionally swap X and Y, without leaking information * about whether the swap was made or not. - * Here it is not ok to simply swap the pointers, which whould lead to + * Here it is not ok to simply swap the pointers, which would lead to * different memory access patterns when X and Y are used afterwards. */ int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, diff --git a/thirdparty/mbedtls/library/constant_time_internal.h b/thirdparty/mbedtls/library/constant_time_internal.h index bbb3a90670..a550b38fa5 100644 --- a/thirdparty/mbedtls/library/constant_time_internal.h +++ b/thirdparty/mbedtls/library/constant_time_internal.h @@ -221,6 +221,13 @@ void mbedtls_ct_memcpy_if_eq( unsigned char *dest, * offset_secret, but only on \p offset_min, \p offset_max and \p len. * Functionally equivalent to `memcpy(dst, src + offset_secret, len)`. * + * \note This function reads from \p dest, but the value that + * is read does not influence the result and this + * function's behavior is well-defined regardless of the + * contents of the buffers. This may result in false + * positives from static or dynamic analyzers, especially + * if \p dest is not initialized. + * * \param dest The destination buffer. This must point to a writable * buffer of at least \p len bytes. * \param src The base of the source buffer. This must point to a diff --git a/thirdparty/mbedtls/library/ctr_drbg.c b/thirdparty/mbedtls/library/ctr_drbg.c index a604ec0761..a00d66ce87 100644 --- a/thirdparty/mbedtls/library/ctr_drbg.c +++ b/thirdparty/mbedtls/library/ctr_drbg.c @@ -828,7 +828,7 @@ static int ctr_drbg_self_test_entropy( void *data, unsigned char *buf, return( 1 ); \ } -#define SELF_TEST_OUPUT_DISCARD_LENGTH 64 +#define SELF_TEST_OUTPUT_DISCARD_LENGTH 64 /* * Checkup routine @@ -854,7 +854,7 @@ int mbedtls_ctr_drbg_self_test( int verbose ) (void *) entropy_source_pr, pers_pr, MBEDTLS_CTR_DRBG_KEYSIZE ) ); mbedtls_ctr_drbg_set_prediction_resistance( &ctx, MBEDTLS_CTR_DRBG_PR_ON ); - CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUPUT_DISCARD_LENGTH ) ); + CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH ) ); CHK( mbedtls_ctr_drbg_random( &ctx, buf, sizeof( result_pr ) ) ); CHK( memcmp( buf, result_pr, sizeof( result_pr ) ) ); @@ -879,7 +879,7 @@ int mbedtls_ctr_drbg_self_test( int verbose ) (void *) entropy_source_nopr, pers_nopr, MBEDTLS_CTR_DRBG_KEYSIZE ) ); CHK( mbedtls_ctr_drbg_reseed( &ctx, NULL, 0 ) ); - CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUPUT_DISCARD_LENGTH ) ); + CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH ) ); CHK( mbedtls_ctr_drbg_random( &ctx, buf, sizeof( result_nopr ) ) ); CHK( memcmp( buf, result_nopr, sizeof( result_nopr ) ) ); diff --git a/thirdparty/mbedtls/library/ecdh.c b/thirdparty/mbedtls/library/ecdh.c index 9dfa868063..60c6e429de 100644 --- a/thirdparty/mbedtls/library/ecdh.c +++ b/thirdparty/mbedtls/library/ecdh.c @@ -399,7 +399,7 @@ static int ecdh_read_params_internal( mbedtls_ecdh_context_mbed *ctx, } /* - * Read the ServerKeyExhange parameters (RFC 4492) + * Read the ServerKeyExchange parameters (RFC 4492) * struct { * ECParameters curve_params; * ECPoint public; diff --git a/thirdparty/mbedtls/library/ecjpake.c b/thirdparty/mbedtls/library/ecjpake.c index 368b6c7124..0b9bffb93e 100644 --- a/thirdparty/mbedtls/library/ecjpake.c +++ b/thirdparty/mbedtls/library/ecjpake.c @@ -435,7 +435,7 @@ cleanup: /* * Read a ECJPAKEKeyKPPairList (7.4.2.3) and check proofs - * Ouputs: verified peer public keys Xa, Xb + * Outputs: verified peer public keys Xa, Xb */ static int ecjpake_kkpp_read( const mbedtls_md_info_t *md_info, const mbedtls_ecp_group *grp, diff --git a/thirdparty/mbedtls/library/ecp.c b/thirdparty/mbedtls/library/ecp.c index 7f9e1045d4..890f364a08 100644 --- a/thirdparty/mbedtls/library/ecp.c +++ b/thirdparty/mbedtls/library/ecp.c @@ -1307,7 +1307,7 @@ cleanup: * For curves in short Weierstrass form, we do all the internal operations in * Jacobian coordinates. * - * For multiplication, we'll use a comb method with coutermeasueres against + * For multiplication, we'll use a comb method with countermeasures against * SPA, hence timing attacks. */ @@ -2251,7 +2251,7 @@ static unsigned char ecp_pick_window_size( const mbedtls_ecp_group *grp, * This function is mainly responsible for administrative work: * - managing the restart context if enabled * - managing the table of precomputed points (passed between the below two - * functions): allocation, computation, ownership tranfer, freeing. + * functions): allocation, computation, ownership transfer, freeing. * * It delegates the actual arithmetic work to: * ecp_precompute_comb() and ecp_mul_comb_with_precomp() @@ -2422,7 +2422,7 @@ cleanup: /* * For Montgomery curves, we do all the internal arithmetic in projective * coordinates. Import/export of points uses only the x coordinates, which is - * internaly represented as X / Z. + * internally represented as X / Z. * * For scalar multiplication, we'll use a Montgomery ladder. */ @@ -2592,7 +2592,7 @@ static int ecp_mul_mxz( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->Z, 0 ) ); mbedtls_mpi_free( &R->Y ); - /* RP.X might be sligtly larger than P, so reduce it */ + /* RP.X might be slightly larger than P, so reduce it */ MOD_ADD( RP.X ); /* Randomize coordinates of the starting point */ diff --git a/thirdparty/mbedtls/library/ecp_curves.c b/thirdparty/mbedtls/library/ecp_curves.c index ff26a18e8f..2199be6461 100644 --- a/thirdparty/mbedtls/library/ecp_curves.c +++ b/thirdparty/mbedtls/library/ecp_curves.c @@ -755,6 +755,8 @@ int mbedtls_ecp_group_load( mbedtls_ecp_group *grp, mbedtls_ecp_group_id id ) ECP_VALIDATE_RET( grp != NULL ); mbedtls_ecp_group_free( grp ); + mbedtls_ecp_group_init( grp ); + grp->id = id; switch( id ) diff --git a/thirdparty/mbedtls/library/memory_buffer_alloc.c b/thirdparty/mbedtls/library/memory_buffer_alloc.c index 0d5d27d3de..cc62324bdc 100644 --- a/thirdparty/mbedtls/library/memory_buffer_alloc.c +++ b/thirdparty/mbedtls/library/memory_buffer_alloc.c @@ -555,8 +555,8 @@ static void *buffer_alloc_calloc_mutexed( size_t n, size_t size ) static void buffer_alloc_free_mutexed( void *ptr ) { - /* We have to good option here, but corrupting the heap seems - * worse than loosing memory. */ + /* We have no good option here, but corrupting the heap seems + * worse than losing memory. */ if( mbedtls_mutex_lock( &heap.mutex ) ) return; buffer_alloc_free( ptr ); diff --git a/thirdparty/mbedtls/library/mps_common.h b/thirdparty/mbedtls/library/mps_common.h index d20776f159..668876ccfc 100644 --- a/thirdparty/mbedtls/library/mps_common.h +++ b/thirdparty/mbedtls/library/mps_common.h @@ -51,7 +51,7 @@ * the function's behavior is entirely undefined. * In addition to state integrity, all MPS structures have a more refined * notion of abstract state that the API operates on. For example, all layers - * have a notion of 'abtract read state' which indicates if incoming data has + * have a notion of 'abstract read state' which indicates if incoming data has * been passed to the user, e.g. through mps_l2_read_start() for Layer 2 * or mps_l3_read() in Layer 3. After such a call, it doesn't make sense to * call these reading functions again until the incoming data has been diff --git a/thirdparty/mbedtls/library/net_sockets.c b/thirdparty/mbedtls/library/net_sockets.c index 5fbe1f764a..8c765e1c8c 100644 --- a/thirdparty/mbedtls/library/net_sockets.c +++ b/thirdparty/mbedtls/library/net_sockets.c @@ -107,7 +107,9 @@ static int wsa_init_done = 0; #include <stdio.h> +#if defined(MBEDTLS_HAVE_TIME) #include <time.h> +#endif #include <stdint.h> diff --git a/thirdparty/mbedtls/library/pkparse.c b/thirdparty/mbedtls/library/pkparse.c index 535ed70eb1..ea5c6b69cb 100644 --- a/thirdparty/mbedtls/library/pkparse.c +++ b/thirdparty/mbedtls/library/pkparse.c @@ -474,7 +474,7 @@ static int pk_use_ecparams( const mbedtls_asn1_buf *params, mbedtls_ecp_group *g } /* - * grp may already be initilialized; if so, make sure IDs match + * grp may already be initialized; if so, make sure IDs match */ if( grp->id != MBEDTLS_ECP_DP_NONE && grp->id != grp_id ) return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); @@ -807,7 +807,7 @@ static int pk_parse_key_pkcs1_der( mbedtls_rsa_context *rsa, goto cleanup; #else - /* Verify existance of the CRT params */ + /* Verify existence of the CRT params */ if( ( ret = asn1_get_nonzero_mpi( &p, end, &T ) ) != 0 || ( ret = asn1_get_nonzero_mpi( &p, end, &T ) ) != 0 || ( ret = asn1_get_nonzero_mpi( &p, end, &T ) ) != 0 ) @@ -1463,10 +1463,16 @@ int mbedtls_pk_parse_public_key( mbedtls_pk_context *ctx, { p = pem.buf; if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL ) + { + mbedtls_pem_free( &pem ); return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + } if( ( ret = mbedtls_pk_setup( ctx, pk_info ) ) != 0 ) + { + mbedtls_pem_free( &pem ); return( ret ); + } if ( ( ret = pk_get_rsapubkey( &p, p + pem.buflen, mbedtls_pk_rsa( *ctx ) ) ) != 0 ) mbedtls_pk_free( ctx ); diff --git a/thirdparty/mbedtls/library/rsa.c b/thirdparty/mbedtls/library/rsa.c index 8a5d40ff1e..d1f6ddb177 100644 --- a/thirdparty/mbedtls/library/rsa.c +++ b/thirdparty/mbedtls/library/rsa.c @@ -832,10 +832,10 @@ cleanup: * the more bits of the key can be recovered. See [3]. * * Collecting n collisions with m bit long blinding value requires 2^(m-m/n) - * observations on avarage. + * observations on average. * * For example with 28 byte blinding to achieve 2 collisions the adversary has - * to make 2^112 observations on avarage. + * to make 2^112 observations on average. * * (With the currently (as of 2017 April) known best algorithms breaking 2048 * bit RSA requires approximately as much time as trying out 2^112 random keys. diff --git a/thirdparty/mbedtls/library/ssl_ciphersuites.c b/thirdparty/mbedtls/library/ssl_ciphersuites.c index 3826ad27fa..ceec77efb0 100644 --- a/thirdparty/mbedtls/library/ssl_ciphersuites.c +++ b/thirdparty/mbedtls/library/ssl_ciphersuites.c @@ -2181,6 +2181,7 @@ const int *mbedtls_ssl_list_ciphersuites( void ) static int supported_ciphersuites[MAX_CIPHERSUITES]; static int supported_init = 0; +MBEDTLS_CHECK_RETURN_CRITICAL static int ciphersuite_is_removed( const mbedtls_ssl_ciphersuite_t *cs_info ) { (void)cs_info; diff --git a/thirdparty/mbedtls/library/ssl_cli.c b/thirdparty/mbedtls/library/ssl_cli.c index b87879ce6a..72351c9757 100644 --- a/thirdparty/mbedtls/library/ssl_cli.c +++ b/thirdparty/mbedtls/library/ssl_cli.c @@ -53,6 +53,7 @@ #endif #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_conf_has_static_psk( mbedtls_ssl_config const *conf ) { if( conf->psk_identity == NULL || @@ -73,6 +74,7 @@ static int ssl_conf_has_static_psk( mbedtls_ssl_config const *conf ) } #if defined(MBEDTLS_USE_PSA_CRYPTO) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_conf_has_static_raw_psk( mbedtls_ssl_config const *conf ) { if( conf->psk_identity == NULL || @@ -91,6 +93,7 @@ static int ssl_conf_has_static_raw_psk( mbedtls_ssl_config const *conf ) #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_hostname_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -161,6 +164,7 @@ static int ssl_write_hostname_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ #if defined(MBEDTLS_SSL_RENEGOTIATION) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -204,6 +208,7 @@ static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -302,6 +307,7 @@ static int ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -373,6 +379,7 @@ static int ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl, return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -404,6 +411,7 @@ static int ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl, MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -477,6 +485,7 @@ static int ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_cid_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -523,6 +532,7 @@ static int ssl_write_cid_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -555,6 +565,7 @@ static int ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -585,6 +596,7 @@ static int ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -616,6 +628,7 @@ static int ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -647,6 +660,7 @@ static int ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -689,6 +703,7 @@ static int ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_SESSION_TICKETS */ #if defined(MBEDTLS_SSL_ALPN) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_alpn_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -748,6 +763,7 @@ static int ssl_write_alpn_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_ALPN */ #if defined(MBEDTLS_SSL_DTLS_SRTP) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl, unsigned char *buf, const unsigned char *end, @@ -868,6 +884,7 @@ static int ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl, /* * Generate random bytes for ClientHello */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_generate_random( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -917,6 +934,7 @@ static int ssl_generate_random( mbedtls_ssl_context *ssl ) * * \return 0 if valid, else 1 */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_validate_ciphersuite( const mbedtls_ssl_ciphersuite_t * suite_info, const mbedtls_ssl_context * ssl, @@ -960,6 +978,7 @@ static int ssl_validate_ciphersuite( return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -1450,6 +1469,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1494,6 +1514,7 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, } #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1520,6 +1541,7 @@ static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1545,6 +1567,7 @@ static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1601,6 +1624,7 @@ static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1627,6 +1651,7 @@ static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1653,6 +1678,7 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1679,6 +1705,7 @@ static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1724,6 +1751,7 @@ static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl, MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1758,6 +1786,7 @@ static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_SSL_ALPN) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) { @@ -1828,6 +1857,7 @@ static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_ALPN */ #if defined(MBEDTLS_SSL_DTLS_SRTP) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -1948,6 +1978,7 @@ static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl, * Parse HelloVerifyRequest. Only called after verifying the HS type. */ #if defined(MBEDTLS_SSL_PROTO_DTLS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl ) { const unsigned char *p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); @@ -2031,6 +2062,7 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl ) } #endif /* MBEDTLS_SSL_PROTO_DTLS */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) { int ret, i; @@ -2276,16 +2308,6 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) else { ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; - - if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); - mbedtls_ssl_send_alert_message( - ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - return( ret ); - } } MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed", @@ -2538,6 +2560,24 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) } /* + * mbedtls_ssl_derive_keys() has to be called after the parsing of the + * extensions. It sets the transform data for the resumed session which in + * case of DTLS includes the server CID extracted from the CID extension. + */ + if( ssl->handshake->resume ) + { + if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); + mbedtls_ssl_send_alert_message( + ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); + return( ret ); + } + } + + /* * Renegotiation security checks */ if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && @@ -2591,6 +2631,7 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl, unsigned char **p, unsigned char *end ) @@ -2637,6 +2678,7 @@ static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl, defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) { const mbedtls_ecp_curve_info *curve_info; @@ -2678,6 +2720,7 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_USE_PSA_CRYPTO) && \ ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl, unsigned char **p, unsigned char *end ) @@ -2703,6 +2746,10 @@ static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl, tls_id <<= 8; tls_id |= *(*p)++; + /* Check it's a curve we offered */ + if( mbedtls_ssl_check_curve_tls_id( ssl, tls_id ) != 0 ) + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + /* Convert EC group to PSA key type. */ if( ( handshake->ecdh_psa_type = mbedtls_psa_parse_tls_ecc_group( tls_id, &ecdh_bits ) ) == 0 ) @@ -2740,6 +2787,7 @@ static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl, unsigned char **p, unsigned char *end ) @@ -2779,6 +2827,7 @@ static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl, unsigned char **p, unsigned char *end ) @@ -2825,6 +2874,7 @@ static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl, /* * Generate a pre-master secret and encrypt it with the server's RSA key */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl, size_t offset, size_t *olen, size_t pms_offset ) @@ -2912,6 +2962,7 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl, unsigned char **p, unsigned char *end, @@ -2978,6 +3029,7 @@ static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -2996,6 +3048,8 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) peer_pk = &ssl->session_negotiate->peer_cert->pk; #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ + /* This is a public key, so it can't be opaque, so can_do() is a good + * enough check to ensure pk_ec() is safe to use below. */ if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECKEY ) ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) ); @@ -3029,6 +3083,7 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) #endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_key_exchange( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3147,7 +3202,7 @@ start_processing: MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); } - } /* FALLTROUGH */ + } /* FALLTHROUGH */ #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ @@ -3435,6 +3490,7 @@ exit: } #if ! defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = @@ -3453,6 +3509,7 @@ static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } #else /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3624,6 +3681,7 @@ exit: } #endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3663,6 +3721,7 @@ static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl ) return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3718,7 +3777,8 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl ) if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) { - psa_status_t status; + psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; + psa_status_t destruction_status = PSA_ERROR_CORRUPTION_DETECTED; psa_key_attributes_t key_attributes; mbedtls_ssl_handshake_params *handshake = ssl->handshake; @@ -3761,13 +3821,19 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl ) own_pubkey, sizeof( own_pubkey ), &own_pubkey_len ); if( status != PSA_SUCCESS ) + { + psa_destroy_key( handshake->ecdh_psa_privkey ); + handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT; return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } if( mbedtls_psa_tls_psa_ec_to_ecpoint( own_pubkey, own_pubkey_len, &own_pubkey_ecpoint, &own_pubkey_ecpoint_len ) != 0 ) { + psa_destroy_key( handshake->ecdh_psa_privkey ); + handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT; return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); } @@ -3787,13 +3853,12 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl ) ssl->handshake->premaster, sizeof( ssl->handshake->premaster ), &ssl->handshake->pmslen ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - status = psa_destroy_key( handshake->ecdh_psa_privkey ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + destruction_status = psa_destroy_key( handshake->ecdh_psa_privkey ); handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT; + + if( status != PSA_SUCCESS || destruction_status != PSA_SUCCESS ) + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); } else #endif /* MBEDTLS_USE_PSA_CRYPTO && @@ -3918,7 +3983,10 @@ ecdh_calc_secret: #if defined(MBEDTLS_USE_PSA_CRYPTO) /* Opaque PSKs are currently only supported for PSK-only suites. */ if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with RSA-PSK" ) ); return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } #endif /* MBEDTLS_USE_PSA_CRYPTO */ if( ( ret = ssl_write_encrypted_pms( ssl, header_len, @@ -3933,7 +4001,10 @@ ecdh_calc_secret: #if defined(MBEDTLS_USE_PSA_CRYPTO) /* Opaque PSKs are currently only supported for PSK-only suites. */ if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with DHE-PSK" ) ); return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } #endif /* MBEDTLS_USE_PSA_CRYPTO */ /* @@ -3970,7 +4041,10 @@ ecdh_calc_secret: #if defined(MBEDTLS_USE_PSA_CRYPTO) /* Opaque PSKs are currently only supported for PSK-only suites. */ if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with ECDHE-PSK" ) ); return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } #endif /* MBEDTLS_USE_PSA_CRYPTO */ /* @@ -4080,6 +4154,7 @@ ecdh_calc_secret: } #if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = @@ -4105,6 +4180,7 @@ static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } #else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; @@ -4277,6 +4353,7 @@ sign: #endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; diff --git a/thirdparty/mbedtls/library/ssl_cookie.c b/thirdparty/mbedtls/library/ssl_cookie.c index abf29ae717..3781796b72 100644 --- a/thirdparty/mbedtls/library/ssl_cookie.c +++ b/thirdparty/mbedtls/library/ssl_cookie.c @@ -63,7 +63,7 @@ /* * Cookies are formed of a 4-bytes timestamp (or serial number) and - * an HMAC of timestemp and client ID. + * an HMAC of timestamp and client ID. */ #define COOKIE_LEN ( 4 + COOKIE_HMAC_LEN ) @@ -122,6 +122,7 @@ int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx, /* * Generate the HMAC part of a cookie */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx, const unsigned char time[4], unsigned char **p, unsigned char *end, diff --git a/thirdparty/mbedtls/library/ssl_msg.c b/thirdparty/mbedtls/library/ssl_msg.c index 0b696dd561..e47c538888 100644 --- a/thirdparty/mbedtls/library/ssl_msg.c +++ b/thirdparty/mbedtls/library/ssl_msg.c @@ -91,6 +91,7 @@ int mbedtls_ssl_check_timer( mbedtls_ssl_context *ssl ) } #if defined(MBEDTLS_SSL_RECORD_CHECKING) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_record_header( mbedtls_ssl_context const *ssl, unsigned char *buf, size_t len, @@ -165,11 +166,16 @@ exit: static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl, uint8_t slot ); static void ssl_free_buffered_record( mbedtls_ssl_context *ssl ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_load_buffered_message( mbedtls_ssl_context *ssl ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_load_buffered_record( mbedtls_ssl_context *ssl ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_buffer_message( mbedtls_ssl_context *ssl ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_buffer_future_record( mbedtls_ssl_context *ssl, mbedtls_record const *rec ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl ); static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl ) @@ -187,6 +193,7 @@ static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl ) return( out_buf_len ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl ) { size_t const bytes_written = ssl->out_left; @@ -203,6 +210,7 @@ static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl ) return( (int) ( mtu - bytes_written ) ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -254,6 +262,7 @@ static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl * Double the retransmit timeout value, within the allowed range, * returning -1 if the maximum value has already been reached. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl ) { uint32_t new_timeout; @@ -353,6 +362,7 @@ static size_t ssl_compute_padding_length( size_t len, * - A negative error code if `max_len` didn't offer enough space * for the expansion. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_build_inner_plaintext( unsigned char *content, size_t *content_size, size_t remaining, @@ -380,6 +390,7 @@ static int ssl_build_inner_plaintext( unsigned char *content, /* This function parses a (D)TLSInnerPlaintext structure. * See ssl_build_inner_plaintext() for details. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_inner_plaintext( unsigned char const *content, size_t *content_size, uint8_t *rec_type ) @@ -474,6 +485,7 @@ static void ssl_extract_add_data_from_record( unsigned char* add_data, /* * SSLv3.0 MAC functions */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_mac( mbedtls_md_context_t *md_ctx, const unsigned char *secret, const unsigned char *buf, size_t len, @@ -541,6 +553,7 @@ static int ssl_mac( mbedtls_md_context_t *md_ctx, #if defined(MBEDTLS_GCM_C) || \ defined(MBEDTLS_CCM_C) || \ defined(MBEDTLS_CHACHAPOLY_C) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_transform_aead_dynamic_iv_is_explicit( mbedtls_ssl_transform const *transform ) { @@ -1245,7 +1258,7 @@ int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context const *ssl, add_data, add_data_len ); /* Because of the check above, we know that there are - * explicit_iv_len Bytes preceeding data, and taglen + * explicit_iv_len Bytes preceding data, and taglen * bytes following data + data_len. This justifies * the debug message and the invocation of * mbedtls_cipher_auth_decrypt() below. */ @@ -1590,8 +1603,8 @@ int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context const *ssl, #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) if( auth_done == 0 ) { - unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD]; - unsigned char mac_peer[MBEDTLS_SSL_MAC_ADD]; + unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD] = { 0 }; + unsigned char mac_peer[MBEDTLS_SSL_MAC_ADD] = { 0 }; /* If the initial value of padlen was such that * data_len < maclen + padlen + 1, then padlen @@ -1738,6 +1751,7 @@ int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context const *ssl, /* * Compression/decompression functions */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_compress_buf( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -1790,6 +1804,7 @@ static int ssl_compress_buf( mbedtls_ssl_context *ssl ) return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_decompress_buf( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -2149,6 +2164,7 @@ int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl ) /* * Append current handshake message to current outgoing flight */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_flight_append( mbedtls_ssl_context *ssl ) { mbedtls_ssl_flight_item *msg; @@ -2215,6 +2231,7 @@ void mbedtls_ssl_flight_free( mbedtls_ssl_flight_item *flight ) /* * Swap transform_out and out_ctr with the alternative ones */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_swap_epochs( mbedtls_ssl_context *ssl ) { mbedtls_ssl_transform *tmp_transform; @@ -2857,6 +2874,7 @@ int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush ) #if defined(MBEDTLS_SSL_PROTO_DTLS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_hs_is_proper_fragment( mbedtls_ssl_context *ssl ) { if( ssl->in_msglen < ssl->in_hslen || @@ -2882,6 +2900,7 @@ static uint32_t ssl_get_hs_frag_off( mbedtls_ssl_context const *ssl ) ssl->in_msg[8] ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_hs_header( mbedtls_ssl_context const *ssl ) { uint32_t msg_len, frag_off, frag_len; @@ -2948,6 +2967,7 @@ static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len ) /* * Check that bitmask is full */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_bitmask_check( unsigned char *mask, size_t len ) { size_t i; @@ -3147,6 +3167,7 @@ static inline uint64_t ssl_load_six_bytes( unsigned char *buf ) ( (uint64_t) buf[5] ) ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int mbedtls_ssl_dtls_record_replay_check( mbedtls_ssl_context *ssl, uint8_t *record_in_ctr ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3229,8 +3250,8 @@ void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) /* - * Without any SSL context, check if a datagram looks like a ClientHello with - * a valid cookie, and if it doesn't, generate a HelloVerifyRequest message. + * Check if a datagram looks like a ClientHello with a valid cookie, + * and if it doesn't, generate a HelloVerifyRequest message. * Both input and output include full DTLS headers. * * - if cookie is valid, return 0 @@ -3239,10 +3260,10 @@ void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl ) * return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED * - otherwise return a specific error code */ -static int ssl_check_dtls_clihlo_cookie( - mbedtls_ssl_cookie_write_t *f_cookie_write, - mbedtls_ssl_cookie_check_t *f_cookie_check, - void *p_cookie, +MBEDTLS_CHECK_RETURN_CRITICAL +MBEDTLS_STATIC_TESTABLE +int mbedtls_ssl_check_dtls_clihlo_cookie( + mbedtls_ssl_context *ssl, const unsigned char *cli_id, size_t cli_id_len, const unsigned char *in, size_t in_len, unsigned char *obuf, size_t buf_len, size_t *olen ) @@ -3276,26 +3297,53 @@ static int ssl_check_dtls_clihlo_cookie( * * Minimum length is 61 bytes. */ - if( in_len < 61 || - in[0] != MBEDTLS_SSL_MSG_HANDSHAKE || + MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: in_len=%u", + (unsigned) in_len ) ); + MBEDTLS_SSL_DEBUG_BUF( 4, "cli_id", cli_id, cli_id_len ); + if( in_len < 61 ) + { + MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: record too short" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + if( in[0] != MBEDTLS_SSL_MSG_HANDSHAKE || in[3] != 0 || in[4] != 0 || in[19] != 0 || in[20] != 0 || in[21] != 0 ) { + MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: not a good ClientHello" ) ); + MBEDTLS_SSL_DEBUG_MSG( 4, ( " type=%u epoch=%u fragment_offset=%u", + in[0], + (unsigned) in[3] << 8 | in[4], + (unsigned) in[19] << 16 | in[20] << 8 | in[21] ) ); return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); } sid_len = in[59]; - if( sid_len > in_len - 61 ) + if( 59 + 1 + sid_len + 1 > in_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: sid_len=%u > %u", + (unsigned) sid_len, + (unsigned) in_len - 61 ) ); return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + MBEDTLS_SSL_DEBUG_BUF( 4, "sid received from network", + in + 60, sid_len ); cookie_len = in[60 + sid_len]; - if( cookie_len > in_len - 60 ) + if( 59 + 1 + sid_len + 1 + cookie_len > in_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: cookie_len=%u > %u", + (unsigned) cookie_len, + (unsigned) ( in_len - sid_len - 61 ) ) ); return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } - if( f_cookie_check( p_cookie, in + sid_len + 61, cookie_len, - cli_id, cli_id_len ) == 0 ) + MBEDTLS_SSL_DEBUG_BUF( 4, "cookie received from network", + in + sid_len + 61, cookie_len ); + if( ssl->conf->f_cookie_check( ssl->conf->p_cookie, + in + sid_len + 61, cookie_len, + cli_id, cli_id_len ) == 0 ) { - /* Valid cookie */ + MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: valid" ) ); return( 0 ); } @@ -3330,8 +3378,9 @@ static int ssl_check_dtls_clihlo_cookie( /* Generate and write actual cookie */ p = obuf + 28; - if( f_cookie_write( p_cookie, - &p, obuf + buf_len, cli_id, cli_id_len ) != 0 ) + if( ssl->conf->f_cookie_write( ssl->conf->p_cookie, + &p, obuf + buf_len, + cli_id, cli_id_len ) != 0 ) { return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } @@ -3370,6 +3419,7 @@ static int ssl_check_dtls_clihlo_cookie( * includes the case of MBEDTLS_ERR_SSL_CLIENT_RECONNECT and of unexpected * errors, and is the right thing to do in both cases). */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3385,15 +3435,13 @@ static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl ) return( 0 ); } - ret = ssl_check_dtls_clihlo_cookie( - ssl->conf->f_cookie_write, - ssl->conf->f_cookie_check, - ssl->conf->p_cookie, + ret = mbedtls_ssl_check_dtls_clihlo_cookie( + ssl, ssl->cli_id, ssl->cli_id_len, ssl->in_buf, ssl->in_left, ssl->out_buf, MBEDTLS_SSL_OUT_CONTENT_LEN, &len ); - MBEDTLS_SSL_DEBUG_RET( 2, "ssl_check_dtls_clihlo_cookie", ret ); + MBEDTLS_SSL_DEBUG_RET( 2, "mbedtls_ssl_check_dtls_clihlo_cookie", ret ); if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ) { @@ -3427,6 +3475,7 @@ static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl ) } #endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_record_type( uint8_t record_type ) { if( record_type != MBEDTLS_SSL_MSG_HANDSHAKE && @@ -3459,6 +3508,7 @@ static int ssl_check_record_type( uint8_t record_type ) * Point 2 is needed when the peer is resending, and we have already received * the first record from a datagram but are still waiting for the others. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_record_header( mbedtls_ssl_context const *ssl, unsigned char *buf, size_t len, @@ -3571,7 +3621,6 @@ static int ssl_parse_record_header( mbedtls_ssl_context const *ssl, /* * Parse and validate record version */ - rec->ver[0] = buf[ rec_hdr_version_offset + 0 ]; rec->ver[1] = buf[ rec_hdr_version_offset + 1 ]; mbedtls_ssl_read_version( &major_ver, &minor_ver, @@ -3580,16 +3629,19 @@ static int ssl_parse_record_header( mbedtls_ssl_context const *ssl, if( major_ver != ssl->major_ver ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch" ) ); + MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch: got %u, expected %u", + (unsigned) major_ver, + (unsigned) ssl->major_ver ) ); return( MBEDTLS_ERR_SSL_INVALID_RECORD ); } if( minor_ver > ssl->conf->max_minor_ver ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) ); + MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch: got %u, expected max %u", + (unsigned) minor_ver, + (unsigned) ssl->conf->max_minor_ver ) ); return( MBEDTLS_ERR_SSL_INVALID_RECORD ); } - /* * Parse/Copy record sequence number. */ @@ -3692,6 +3744,7 @@ static int ssl_parse_record_header( mbedtls_ssl_context const *ssl, #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_client_reconnect( mbedtls_ssl_context *ssl ) { unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1]; @@ -3721,6 +3774,7 @@ static int ssl_check_client_reconnect( mbedtls_ssl_context *ssl ) /* * If applicable, decrypt record content */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_prepare_record_content( mbedtls_ssl_context *ssl, mbedtls_record *rec ) { @@ -3854,7 +3908,7 @@ static int ssl_prepare_record_content( mbedtls_ssl_context *ssl, /* Check actual (decrypted) record content length against * configured maximum. */ - if( ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN ) + if( rec->data_len > MBEDTLS_SSL_IN_CONTENT_LEN ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); return( MBEDTLS_ERR_SSL_INVALID_RECORD ); @@ -3872,8 +3926,11 @@ static int ssl_prepare_record_content( mbedtls_ssl_context *ssl, */ /* Helper functions for mbedtls_ssl_read_record(). */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_consume_current_message( mbedtls_ssl_context *ssl ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_get_next_record( mbedtls_ssl_context *ssl ); +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl ); int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl, @@ -3961,6 +4018,7 @@ int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl, } #if defined(MBEDTLS_SSL_PROTO_DTLS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl ) { if( ssl->in_left > ssl->next_record_offset ) @@ -3969,6 +4027,7 @@ static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl ) return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_load_buffered_message( mbedtls_ssl_context *ssl ) { mbedtls_ssl_handshake_params * const hs = ssl->handshake; @@ -4066,6 +4125,7 @@ exit: return( ret ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_buffer_make_space( mbedtls_ssl_context *ssl, size_t desired ) { @@ -4108,6 +4168,7 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl, return( -1 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_buffer_message( mbedtls_ssl_context *ssl ) { int ret = 0; @@ -4312,6 +4373,7 @@ exit: } #endif /* MBEDTLS_SSL_PROTO_DTLS */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_consume_current_message( mbedtls_ssl_context *ssl ) { /* @@ -4399,6 +4461,7 @@ static int ssl_consume_current_message( mbedtls_ssl_context *ssl ) return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl ) { if( ssl->in_msglen > 0 ) @@ -4425,6 +4488,7 @@ static void ssl_free_buffered_record( mbedtls_ssl_context *ssl ) } } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_load_buffered_record( mbedtls_ssl_context *ssl ) { mbedtls_ssl_handshake_params * const hs = ssl->handshake; @@ -4482,6 +4546,7 @@ exit: return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_buffer_future_record( mbedtls_ssl_context *ssl, mbedtls_record const *rec ) { @@ -4540,6 +4605,7 @@ static int ssl_buffer_future_record( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_PROTO_DTLS */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_get_next_record( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -4918,6 +4984,9 @@ int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl, if( ssl == NULL || ssl->conf == NULL ) return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if( ssl->out_left != 0 ) + return( mbedtls_ssl_flush_output( ssl ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> send alert message" ) ); MBEDTLS_SSL_DEBUG_MSG( 3, ( "send alert level=%u message=%u", level, message )); @@ -5287,6 +5356,7 @@ int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl ) /* * Check record counters and renegotiate if they're above the limit. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl ) { size_t ep_len = mbedtls_ssl_ep_len( ssl ); @@ -5637,6 +5707,7 @@ int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len ) * Therefore, it is possible that the input message length is 0 and the * corresponding return code is 0 on success. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_real( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) { @@ -5708,6 +5779,7 @@ static int ssl_write_real( mbedtls_ssl_context *ssl, * remember whether we already did the split or not. */ #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_split( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) { @@ -5790,9 +5862,6 @@ int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl ) MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write close notify" ) ); - if( ssl->out_left != 0 ) - return( mbedtls_ssl_flush_output( ssl ) ); - if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) { if( ( ret = mbedtls_ssl_send_alert_message( ssl, diff --git a/thirdparty/mbedtls/library/ssl_srv.c b/thirdparty/mbedtls/library/ssl_srv.c index 1a63173204..2efb13cc33 100644 --- a/thirdparty/mbedtls/library/ssl_srv.c +++ b/thirdparty/mbedtls/library/ssl_srv.c @@ -78,6 +78,7 @@ void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf, #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -147,6 +148,7 @@ static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf ) { if( conf->f_psk != NULL ) @@ -167,6 +169,7 @@ static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf ) } #if defined(MBEDTLS_USE_PSA_CRYPTO) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl ) { if( ssl->conf->f_psk != NULL ) @@ -188,6 +191,7 @@ static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl ) #endif /* MBEDTLS_USE_PSA_CRYPTO */ #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -239,6 +243,7 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, * This needs to be done at a later stage. * */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -317,6 +322,7 @@ static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -383,6 +389,7 @@ static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl, return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -425,6 +432,7 @@ static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl, MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -454,6 +462,7 @@ static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -473,6 +482,7 @@ static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -545,6 +555,7 @@ static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -567,6 +578,7 @@ static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -592,6 +604,7 @@ static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -617,6 +630,7 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len ) @@ -691,6 +705,7 @@ static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_SESSION_TICKETS */ #if defined(MBEDTLS_SSL_ALPN) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) { @@ -779,6 +794,7 @@ static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_ALPN */ #if defined(MBEDTLS_SSL_DTLS_SRTP) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -907,6 +923,7 @@ static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl, * Return 0 if the given key uses one of the acceptable curves, -1 otherwise */ #if defined(MBEDTLS_ECDSA_C) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_key_curve( mbedtls_pk_context *pk, const mbedtls_ecp_curve_info **curves ) { @@ -928,6 +945,7 @@ static int ssl_check_key_curve( mbedtls_pk_context *pk, * Try picking a certificate for this ciphersuite, * return 0 on success and -1 on failure. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_pick_cert( mbedtls_ssl_context *ssl, const mbedtls_ssl_ciphersuite_t * ciphersuite_info ) { @@ -1032,6 +1050,7 @@ static int ssl_pick_cert( mbedtls_ssl_context *ssl, * Check if a given ciphersuite is suitable for use with our config/keys/etc * Sets ciphersuite_info only if the suite matches. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id, const mbedtls_ssl_ciphersuite_t **ciphersuite_info ) { @@ -1147,6 +1166,7 @@ static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id, } #if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl ) { int ret, got_common_suite; @@ -1410,6 +1430,7 @@ have_ciphersuite_v2: /* This function doesn't alert on errors that happen early during ClientHello parsing because they might indicate that the client is not talking SSL/TLS at all and would not understand our alert. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_client_hello( mbedtls_ssl_context *ssl ) { int ret, got_common_suite; @@ -1583,7 +1604,7 @@ read_record_header: * Handshake layer: * 0 . 0 handshake type * 1 . 3 handshake length - * 4 . 5 DTLS only: message seqence number + * 4 . 5 DTLS only: message sequence number * 6 . 8 DTLS only: fragment offset * 9 . 11 DTLS only: fragment length */ @@ -1604,11 +1625,19 @@ read_record_header: MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %d", ( buf[1] << 16 ) | ( buf[2] << 8 ) | buf[3] ) ); + if( buf[1] != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message: %u != 0", + (unsigned) buf[1] ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } /* We don't support fragmentation of ClientHello (yet?) */ - if( buf[1] != 0 || - msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) ) + if( msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message: %u != %u + %u", + (unsigned) msg_len, + (unsigned) mbedtls_ssl_hs_hdr_len( ssl ), + (unsigned) ( buf[2] << 8 ) | buf[3] ) ); return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); } @@ -1649,6 +1678,11 @@ read_record_header: * For now we don't support fragmentation, so make sure * fragment_offset == 0 and fragment_length == length */ + MBEDTLS_SSL_DEBUG_MSG( + 4, ( "fragment_offset=%u fragment_length=%u length=%u", + (unsigned) ( ssl->in_msg[6] << 16 | ssl->in_msg[7] << 8 | ssl->in_msg[8] ), + (unsigned) ( ssl->in_msg[9] << 16 | ssl->in_msg[10] << 8 | ssl->in_msg[11] ), + (unsigned) ( ssl->in_msg[1] << 16 | ssl->in_msg[2] << 8 | ssl->in_msg[3] ) ) ); if( ssl->in_msg[6] != 0 || ssl->in_msg[7] != 0 || ssl->in_msg[8] != 0 || memcmp( ssl->in_msg + 1, ssl->in_msg + 9, 3 ) != 0 ) { @@ -2354,12 +2388,8 @@ static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, const mbedtls_ssl_ciphersuite_t *suite = NULL; const mbedtls_cipher_info_t *cipher = NULL; - if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - *olen = 0; - return; - } + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_DISABLED; /* * RFC 7366: "If a server receives an encrypt-then-MAC request extension @@ -2372,6 +2402,11 @@ static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, ( cipher = mbedtls_cipher_info_from_type( suite->cipher ) ) == NULL || cipher->mode != MBEDTLS_MODE_CBC ) { + ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_DISABLED; + } + + if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ) + { *olen = 0; return; } @@ -2685,6 +2720,7 @@ static void ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_DTLS_SRTP */ #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -2805,6 +2841,7 @@ exit: mbedtls_ssl_session_free( &session_tmp ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_server_hello( mbedtls_ssl_context *ssl ) { #if defined(MBEDTLS_HAVE_TIME) @@ -3035,6 +3072,7 @@ static int ssl_write_server_hello( mbedtls_ssl_context *ssl ) } #if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = @@ -3053,6 +3091,7 @@ static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } #else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; @@ -3222,18 +3261,23 @@ static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; + mbedtls_pk_context *own_key = mbedtls_ssl_own_key( ssl ); - if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECKEY ) ) + /* Check if the key is a transparent ECDH key. + * This also ensures that it is safe to call mbedtls_pk_ec(). */ + if( mbedtls_pk_get_type( own_key ) != MBEDTLS_PK_ECKEY && + mbedtls_pk_get_type( own_key ) != MBEDTLS_PK_ECKEY_DH ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) ); return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); } if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, - mbedtls_pk_ec( *mbedtls_ssl_own_key( ssl ) ), + mbedtls_pk_ec( *own_key ), MBEDTLS_ECDH_OURS ) ) != 0 ) { MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret ); @@ -3247,6 +3291,7 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED) && \ defined(MBEDTLS_SSL_ASYNC_PRIVATE) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl, size_t *signature_len ) { @@ -3274,6 +3319,7 @@ static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl, /* Prepare the ServerKeyExchange message, up to and including * calculating the signature if any, but excluding formatting the * signature and sending the message. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl, size_t *signature_len ) { @@ -3643,6 +3689,7 @@ curve_matching_done: * that do not include a ServerKeyExchange message, do nothing. Either * way, if successful, move on to the next step in the SSL state * machine. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3664,7 +3711,12 @@ static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED) if( mbedtls_ssl_ciphersuite_uses_ecdh( ciphersuite_info ) ) { - ssl_get_ecdh_params_from_cert( ssl ); + ret = ssl_get_ecdh_params_from_cert( ssl ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret ); + return( ret ); + } } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED */ @@ -3740,6 +3792,7 @@ static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl ) return( 0 ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -3779,6 +3832,7 @@ static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p, const unsigned char *end ) { @@ -3822,6 +3876,7 @@ static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char * defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) #if defined(MBEDTLS_SSL_ASYNC_PRIVATE) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl, unsigned char *peer_pms, size_t *peer_pmslen, @@ -3839,6 +3894,7 @@ static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl, } #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl, const unsigned char *p, const unsigned char *end, @@ -3931,6 +3987,7 @@ static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl, return( ret ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl, const unsigned char *p, const unsigned char *end, @@ -4020,6 +4077,7 @@ static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl, MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p, const unsigned char *end ) { @@ -4080,6 +4138,7 @@ static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned cha } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -4207,7 +4266,7 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) } #if defined(MBEDTLS_USE_PSA_CRYPTO) - /* For opaque PSKs, we perform the PSK-to-MS derivation atomatically + /* For opaque PSKs, we perform the PSK-to-MS derivation automatically * and skip the intermediate PMS. */ if( ssl_use_opaque_psk( ssl ) == 1 ) MBEDTLS_SSL_DEBUG_MSG( 1, ( "skip PMS generation for opaque PSK" ) ); @@ -4247,7 +4306,10 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_USE_PSA_CRYPTO) /* Opaque PSKs are currently only supported for PSK-only. */ if( ssl_use_opaque_psk( ssl ) == 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with RSA-PSK" ) ); return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } #endif if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 ) @@ -4282,7 +4344,10 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_USE_PSA_CRYPTO) /* Opaque PSKs are currently only supported for PSK-only. */ if( ssl_use_opaque_psk( ssl ) == 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with DHE-PSK" ) ); return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } #endif if( p != end ) @@ -4319,7 +4384,10 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_USE_PSA_CRYPTO) /* Opaque PSKs are currently only supported for PSK-only. */ if( ssl_use_opaque_psk( ssl ) == 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with ECDHE-PSK" ) ); return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } #endif MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, @@ -4386,6 +4454,7 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) } #if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = @@ -4404,6 +4473,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } #else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; @@ -4597,6 +4667,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) #endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; diff --git a/thirdparty/mbedtls/library/ssl_ticket.c b/thirdparty/mbedtls/library/ssl_ticket.c index 046ed1b2ff..e0126cc9d1 100644 --- a/thirdparty/mbedtls/library/ssl_ticket.c +++ b/thirdparty/mbedtls/library/ssl_ticket.c @@ -37,7 +37,7 @@ #include <string.h> /* - * Initialze context + * Initialize context */ void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx ) { @@ -66,6 +66,7 @@ void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx ) /* * Generate/update a key */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx, unsigned char index ) { @@ -96,6 +97,7 @@ static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx, /* * Rotate/generate keys if necessary */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx ) { #if !defined(MBEDTLS_HAVE_TIME) diff --git a/thirdparty/mbedtls/library/ssl_tls.c b/thirdparty/mbedtls/library/ssl_tls.c index 2e6469de83..7badec51ae 100644 --- a/thirdparty/mbedtls/library/ssl_tls.c +++ b/thirdparty/mbedtls/library/ssl_tls.c @@ -245,6 +245,7 @@ int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst, } #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) +MBEDTLS_CHECK_RETURN_CRITICAL static int resize_buffer( unsigned char **buffer, size_t len_new, size_t *len_old ) { unsigned char* resized_buffer = mbedtls_calloc( 1, len_new ); @@ -337,6 +338,7 @@ static void handle_buffer_resizing( mbedtls_ssl_context *ssl, int downsizing, * Key material generation */ #if defined(MBEDTLS_SSL_PROTO_SSL3) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl3_prf( const unsigned char *secret, size_t slen, const char *label, const unsigned char *random, size_t rlen, @@ -398,6 +400,7 @@ exit: #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) +MBEDTLS_CHECK_RETURN_CRITICAL static int tls1_prf( const unsigned char *secret, size_t slen, const char *label, const unsigned char *random, size_t rlen, @@ -605,6 +608,7 @@ static psa_status_t setup_psa_key_derivation( psa_key_derivation_operation_t* de return( PSA_SUCCESS ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int tls_prf_generic( mbedtls_md_type_t md_type, const unsigned char *secret, size_t slen, const char *label, @@ -679,6 +683,7 @@ static int tls_prf_generic( mbedtls_md_type_t md_type, #else /* MBEDTLS_USE_PSA_CRYPTO */ +MBEDTLS_CHECK_RETURN_CRITICAL static int tls_prf_generic( mbedtls_md_type_t md_type, const unsigned char *secret, size_t slen, const char *label, @@ -770,6 +775,7 @@ exit: } #endif /* MBEDTLS_USE_PSA_CRYPTO */ #if defined(MBEDTLS_SHA256_C) +MBEDTLS_CHECK_RETURN_CRITICAL static int tls_prf_sha256( const unsigned char *secret, size_t slen, const char *label, const unsigned char *random, size_t rlen, @@ -781,6 +787,7 @@ static int tls_prf_sha256( const unsigned char *secret, size_t slen, #endif /* MBEDTLS_SHA256_C */ #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) +MBEDTLS_CHECK_RETURN_CRITICAL static int tls_prf_sha384( const unsigned char *secret, size_t slen, const char *label, const unsigned char *random, size_t rlen, @@ -825,6 +832,7 @@ static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char * #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) && \ defined(MBEDTLS_USE_PSA_CRYPTO) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl ) { if( ssl->conf->f_psk != NULL ) @@ -949,6 +957,7 @@ typedef int ssl_tls_prf_t(const unsigned char *, size_t, const char *, * - MBEDTLS_SSL_EXPORT_KEYS: ssl->conf->{f,p}_export_keys * - MBEDTLS_DEBUG_C: ssl->conf->{f,p}_dbg */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_populate_transform( mbedtls_ssl_transform *transform, int ciphersuite, const unsigned char master[48], @@ -990,6 +999,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, #if !defined(MBEDTLS_SSL_HW_RECORD_ACCEL) && \ !defined(MBEDTLS_SSL_EXPORT_KEYS) && \ + !defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \ !defined(MBEDTLS_DEBUG_C) ssl = NULL; /* make sure we don't use it except for those cases */ (void) ssl; @@ -1361,7 +1371,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, * the structure field for the IV, which the PSA-based * implementation currently doesn't. */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) { ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_enc, cipher_info, transform->taglen ); @@ -1404,7 +1414,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, * the structure field for the IV, which the PSA-based * implementation currently doesn't. */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) { ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_dec, cipher_info, transform->taglen ); @@ -1511,6 +1521,7 @@ end: * Outputs: * - the tls_prf, calc_verify and calc_finished members of handshake structure */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake, int minor_ver, mbedtls_md_type_t hash ) @@ -1580,6 +1591,7 @@ static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake, * EMS: passed to calc_verify (debug + (SSL3) session_negotiate) * PSA-PSA: minor_ver, conf */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake, unsigned char *master, const mbedtls_ssl_context *ssl ) @@ -2108,6 +2120,7 @@ int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exch #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_hello_request( mbedtls_ssl_context *ssl ); #if defined(MBEDTLS_SSL_PROTO_DTLS) @@ -2323,6 +2336,7 @@ write_msg: #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, unsigned char *crt_buf, size_t crt_buf_len ) @@ -2338,6 +2352,7 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, return( memcmp( peer_crt->raw.p, crt_buf, peer_crt->raw.len ) ); } #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, unsigned char *crt_buf, size_t crt_buf_len ) @@ -2372,6 +2387,7 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, * Once the certificate message is read, parse it into a cert chain and * perform basic checks, but leave actual verification to the caller */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl, mbedtls_x509_crt *chain ) { @@ -2521,6 +2537,7 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl, } #if defined(MBEDTLS_SSL_SRV_C) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl ) { if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) @@ -2570,6 +2587,7 @@ static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl ) */ #define SSL_CERTIFICATE_EXPECTED 0 #define SSL_CERTIFICATE_SKIP 1 +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl, int authmode ) { @@ -2599,6 +2617,7 @@ static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl, return( SSL_CERTIFICATE_EXPECTED ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, int authmode, mbedtls_x509_crt *chain, @@ -2696,7 +2715,9 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, { const mbedtls_pk_context *pk = &chain->pk; - /* If certificate uses an EC key, make sure the curve is OK */ + /* If certificate uses an EC key, make sure the curve is OK. + * This is a public key, so it can't be opaque, so can_do() is a good + * enough check to ensure pk_ec() is safe to use here. */ if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) && mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 ) { @@ -2787,6 +2808,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, } #if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl, unsigned char *start, size_t len ) { @@ -2818,6 +2840,7 @@ static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl, return( ret ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl, unsigned char *start, size_t len ) { @@ -3428,7 +3451,7 @@ void mbedtls_ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl ) ssl->handshake = NULL; /* - * Free the previous transform and swith in the current one + * Free the previous transform and switch in the current one */ if( ssl->transform ) { @@ -3796,6 +3819,7 @@ void mbedtls_ssl_session_init( mbedtls_ssl_session *session ) memset( session, 0, sizeof(mbedtls_ssl_session) ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_handshake_init( mbedtls_ssl_context *ssl ) { /* Clear old handshake information if present */ @@ -3873,6 +3897,7 @@ static int ssl_handshake_init( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) /* Dummy cookie callbacks for defaults */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_cookie_write_dummy( void *ctx, unsigned char **p, unsigned char *end, const unsigned char *cli_id, size_t cli_id_len ) @@ -3886,6 +3911,7 @@ static int ssl_cookie_write_dummy( void *ctx, return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); } +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_cookie_check_dummy( void *ctx, const unsigned char *cookie, size_t cookie_len, const unsigned char *cli_id, size_t cli_id_len ) @@ -4303,6 +4329,7 @@ void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf, } /* Append a new keycert entry to a (possibly empty) list */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_append_key_cert( mbedtls_ssl_key_cert **head, mbedtls_x509_crt *cert, mbedtls_pk_context *key ) @@ -4471,6 +4498,7 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf ) * It checks that the provided identity is well-formed and attempts * to make a copy of it in the SSL config. * On failure, the PSK identity in the config remains unset. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf, unsigned char const *psk_identity, size_t psk_identity_len ) @@ -4632,6 +4660,9 @@ int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf, { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; + mbedtls_mpi_free( &conf->dhm_P ); + mbedtls_mpi_free( &conf->dhm_G ); + if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 || ( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 ) { @@ -4647,6 +4678,9 @@ int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; + mbedtls_mpi_free( &conf->dhm_P ); + mbedtls_mpi_free( &conf->dhm_G ); + if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 || ( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 ) { @@ -5384,6 +5418,7 @@ static unsigned char ssl_serialized_session_header[] = { * verify_result is put before peer_cert so that all mandatory fields come * together in one block. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_session_save( const mbedtls_ssl_session *session, unsigned char omit_header, unsigned char *buf, @@ -5583,6 +5618,7 @@ int mbedtls_ssl_session_save( const mbedtls_ssl_session *session, * This internal version is wrapped by a public function that cleans up in * case of error, and has an extra option omit_header. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_session_load( mbedtls_ssl_session *session, unsigned char omit_header, const unsigned char *buf, @@ -5886,6 +5922,7 @@ int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ) /* * Write HelloRequest to request renegotiation on server */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_write_hello_request( mbedtls_ssl_context *ssl ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -6497,6 +6534,7 @@ static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id ) * This internal version is wrapped by a public function that cleans up in * case of error. */ +MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_context_load( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) @@ -7320,6 +7358,18 @@ int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_i return( -1 ); } + +/* + * Same as mbedtls_ssl_check_curve() but takes a TLS ID for the curve. + */ +int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls_id ) +{ + const mbedtls_ecp_curve_info *curve_info = + mbedtls_ecp_curve_info_from_tls_id( tls_id ); + if( curve_info == NULL ) + return( -1 ); + return( mbedtls_ssl_check_curve( ssl, curve_info->grp_id ) ); +} #endif /* MBEDTLS_ECP_C */ #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) diff --git a/thirdparty/mbedtls/library/threading.c b/thirdparty/mbedtls/library/threading.c index 2de117f52a..5e0aaa4f21 100644 --- a/thirdparty/mbedtls/library/threading.c +++ b/thirdparty/mbedtls/library/threading.c @@ -113,7 +113,7 @@ int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_ int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread; /* - * With phtreads we can statically initialize mutexes + * With pthreads we can statically initialize mutexes */ #define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 } diff --git a/thirdparty/mbedtls/library/timing.c b/thirdparty/mbedtls/library/timing.c index eb41461320..57bc9bcc12 100644 --- a/thirdparty/mbedtls/library/timing.c +++ b/thirdparty/mbedtls/library/timing.c @@ -56,15 +56,15 @@ struct _hr_time #include <unistd.h> #include <sys/types.h> -#include <sys/time.h> #include <signal.h> +/* time.h should be included independently of MBEDTLS_HAVE_TIME. If the + * platform matches the ifdefs above, it will be used. */ #include <time.h> - +#include <sys/time.h> struct _hr_time { struct timeval start; }; - #endif /* _WIN32 && !EFIX64 && !EFI32 */ #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ @@ -364,7 +364,6 @@ int mbedtls_timing_get_delay( void *data ) return( 0 ); } -#endif /* !MBEDTLS_TIMING_ALT */ #if defined(MBEDTLS_SELF_TEST) @@ -526,5 +525,5 @@ hard_test_done: } #endif /* MBEDTLS_SELF_TEST */ - +#endif /* !MBEDTLS_TIMING_ALT */ #endif /* MBEDTLS_TIMING_C */ diff --git a/thirdparty/mbedtls/library/x509.c b/thirdparty/mbedtls/library/x509.c index f21e9e6944..3997ebd1f3 100644 --- a/thirdparty/mbedtls/library/x509.c +++ b/thirdparty/mbedtls/library/x509.c @@ -741,7 +741,7 @@ int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end, int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn ) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - size_t i, n; + size_t i, j, n; unsigned char c, merge = 0; const mbedtls_x509_name *name; const char *short_name = NULL; @@ -775,17 +775,24 @@ int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn ) ret = mbedtls_snprintf( p, n, "\?\?=" ); MBEDTLS_X509_SAFE_SNPRINTF; - for( i = 0; i < name->val.len; i++ ) + for( i = 0, j = 0; i < name->val.len; i++, j++ ) { - if( i >= sizeof( s ) - 1 ) - break; + if( j >= sizeof( s ) - 1 ) + return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); c = name->val.p[i]; + // Special characters requiring escaping, RFC 1779 + if( c && strchr( ",=+<>#;\"\\", c ) ) + { + if( j + 1 >= sizeof( s ) - 1 ) + return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); + s[j++] = '\\'; + } if( c < 32 || c >= 127 ) - s[i] = '?'; - else s[i] = c; + s[j] = '?'; + else s[j] = c; } - s[i] = '\0'; + s[j] = '\0'; ret = mbedtls_snprintf( p, n, "%s", s ); MBEDTLS_X509_SAFE_SNPRINTF; diff --git a/thirdparty/mbedtls/library/x509_crl.c b/thirdparty/mbedtls/library/x509_crl.c index ac4fc75de3..d2d8042029 100644 --- a/thirdparty/mbedtls/library/x509_crl.c +++ b/thirdparty/mbedtls/library/x509_crl.c @@ -52,11 +52,13 @@ #define mbedtls_snprintf snprintf #endif +#if defined(MBEDTLS_HAVE_TIME) #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) #include <windows.h> #else #include <time.h> #endif +#endif #if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32) #include <stdio.h> diff --git a/thirdparty/mbedtls/library/x509_crt.c b/thirdparty/mbedtls/library/x509_crt.c index 60312bf2f5..96477e4c9d 100644 --- a/thirdparty/mbedtls/library/x509_crt.c +++ b/thirdparty/mbedtls/library/x509_crt.c @@ -63,6 +63,7 @@ #include "mbedtls/threading.h" #endif +#if defined(MBEDTLS_HAVE_TIME) #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) #include <windows.h> #if defined(_MSC_VER) && _MSC_VER <= 1600 @@ -81,6 +82,7 @@ #else #include <time.h> #endif +#endif #if defined(MBEDTLS_FS_IO) #include <stdio.h> diff --git a/thirdparty/mbedtls/library/x509write_crt.c b/thirdparty/mbedtls/library/x509write_crt.c index 184c90cd33..0c5e991834 100644 --- a/thirdparty/mbedtls/library/x509write_crt.c +++ b/thirdparty/mbedtls/library/x509write_crt.c @@ -299,7 +299,7 @@ static int x509_write_time( unsigned char **p, unsigned char *start, /* * write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter) */ - if( t[0] == '2' && t[1] == '0' && t[2] < '5' ) + if( t[0] < '2' || ( t[0] == '2' && t[1] == '0' && t[2] < '5' ) ) { MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, (const unsigned char *) t + 2, |